Computer Model for a Wind–Diesel Hybrid System with Compressed Air Energy Storage

Abstract

A hybrid system combines two or more energy sources as an integrated unit to generate electricity. The nature of the sources associated varies between renewable and/or non-renewable energies. Such systems are becoming popular as stand-alone power systems to provide electricity, especially in off grid remote areas where diesel generators act as primary energy source. Wind–diesel systems are among the preferred solutions for new installations, as well as the upgrade of existing ones. However, efforts to address technical challenges towards energy transformation for sustainable development are multiple. The use of energy storage systems is a solution to reduce energy costs and environmental impacts. Indeed, efficient and distributed storage not only allows the electricity grid greater flexibility in the face of demand variations and greater robustness thanks to the decentralization of energy sources, it also offers a solution to increase the use of intermittent renewables in the energy mix. Among different technologies for electrical energy storage, compressed air energy storage is proven to achieve high wind energy penetration and optimal operation of diesel generators. This paper presents a computer model for performance evaluation of a wind–diesel hybrid system with compressed air energy storage. The model has been validated by comparing the results of a wind–diesel case study against those obtained using HOMER software (National Renewable Energy Laboratory, Golden, CO, United States). Different operation modes of the hybrid system are then explored. The impact of hybridization on time and frequency of operation for each power source, fuel consumption and energy dissipation has been determined. Recommendations are made on the choice of key parameters for system optimization.

Decarbonisation Using Hybrid Energy Solution: Case Study of Zagazig, Egypt

“…The HOMER software was chosen because of its ability to create a hybrid model for different energy resources such as wind and solar which have been used in previous studies [30,31]. For the simulation, firstly, the load demand was determined which gave the scale at which the hybrid system must operate.…”

Renewable energy generation system connected to micro grid and analysis of energy management: a critical review

“…The coefficients 𝑝 0 and 𝑞 0 are the intercept of the fuel curve which is the unleaded fuel consumption of the generator divided by its nominal capacity and the slope of the fuel curve representing the marginal fuel consumption the generator. Table 3 presents the summary of integration of diesel system with various renewable energy system is referred from [25]- [31].…”

“…The result showed that 10 PV systems were highly reliable and fulfills the load demand. [31] Wind-Diesel --Developed the Wind-Diesel hybrid system for reducing the use of diesel with integrating high penetration system and compressed air energy storage to improvement in renewable energy and reduces the cost. To design the energy storage system based on super capacitor for the micro-grid operation.…”

Impact of Energy Storage Useful Life on Intelligent Microgrid Scheduling

“…The operation cost of the battery banks is similar as the cost of life of the renewable energy generation equipment (C bl ) [8,15,[35][36][37][38][39][40]. This is presented in Equation (18), where L loss is the battery life loss and C init-bat is the initial investment cost [8].…”